Subaru EX40 - 17. STANDARD REPAIR TABLES; 17-1 STANDARD DIMENSIONS AND LIMITS OF USE; Cylinder Head and Piston Specs

- 72 -
17. STANDARD REPAIR TABLES
“STD” in the following table is the parts dimension from the brand new engine or the spare parts.
Whereas, “Limit” shows the maximum allowance for the parts to be used on the engine.
If the measurement exceeds beyond the “Limit”, the part needs to be replaced and/or repaired.
17-1 STANDARD DIMENSIONS AND LIMITS OF USE
ITEM STD Limit
CYLINDER HEAD
* Flatness
0.05
(0.002)
0.1
(0.004)
* Intake/exhaust valve seat
contact width
Intake
Exhaust
0.7 - 1.0
(0.0276 - 0.0394)
-
* Intake/exhaust valve guide inner diameter
Intake
Exhaust
6.035 - 6.053
(0.2376 - 0.2383)
-
* Rocker arm pin outer diameter
Pin outer diameter
D1, D2
7.970 - 7.980
(0.3138 - 0.3142)
7.9
(0.3110)
* Rocker arm pin support inner diameter
Support inner diameter
D3, D4
8.00 - 8.018
(0.3150 - 0.3157)
8.05
(0.3169)
D3 D4
D 1 D 2
Unit: mm (in.)